Well-drilling apparatus.



' wwmm 'PATENTED APR. 21, 1908; GJMILLIRON. WELL DRILLING APPARATUS.

AP1 LICA-TION PIL BD NOV. 23.1906. 11

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PATENTE'D APR. 21, L908.

'G- .MILLIRON.

WELL DRILLING APPARATUS.

APPLICATION FILED NOV. 23.1006. I 2 snnizfrs-snnnr 2.

upon which Fig. 1 is taken.

UNITED STATES PATENT orn on.

CHARLES MILLIRON, OF BARTLESVILLE, OKLAHOMA, ASSIGNOR OF ONE-HALF TOAMERICAN WELL & PROSPECTING COMPANY, OF CORSICANA, TEXAS, A CORPORATIONOF TEXAS.

WELL-DRILLIN G APPARATUS.

Iva 885,170.

- Specification of Letters Patent.

Patented April 21, 1908.

Application filed November 23, 1906. Serial No. 344,768.

To all whom it may concern:

Be it known that I, CHARLEs MILLIRON, a citizen of the United States,residing at Bartlesville, in the county of Cherokee, Oklahoma, haveinvented certain new and useful Improvements in Well-Drilling Apparatus;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same. 7

This invention relates to improvements in a well drilling ap aratus, andmore particularly heads for oil well drills.

The invention comprises the production of a head that is formed with acasing, removable cover, and clamping means that are adapted to clampvarious sized wires as may be desired.

The pbject in view is the production of a well drilling head that iseasily and quickly secured in place and is quickly accommodated tovarious sized Wires, and is adapted to firmly grasp the same.

Another object in View is the production of a casing head having aplurality of gripping members mounted therein, a removable cover forholding the gripping members in place, and means for adjusting theposition of the members for firmly grasping a wire that is adapted topass therethrough.

With these and other objects in View the invention comprises certainnovel constructions, combinations and arrangements of parts as will behereinafter more fully described and claimed.

In the accompanying drawings :Figure 1 is a side elevation of myimproved drill head and surrounding mechanism. Fig. 2 is a verticalsection through a drill head and surrounding mechanism. Fig. 3 is avertical section through a drill head and surrounding mechanism at aright angle to the section Fig. 4 is a section taken on line AB of Fig.2.

In the digging andoperating of wells, and particularly oil wells, it hasbeen found desirable, under certain conditions, to operate the drillingmechanism while the liquid flows been provided for holding the rope asthe same is operated. It is to this class of rope holding or grippingmeans that the present invention relates.

Referring more particularly to the drawings, -1 indicates the casing ofa clamping head, and 2 a securing portion or nut shaped member that isadapted to have the casing 1 secured thereto and in turn be secured to atube 3 that is adapted to reciprocate in a well. The tube 3 is adaptedto reciprocate in a cap 4 of any preferred construction which is adaptedto direct oil or other liquid from the well casing 5 to any convenientpoint. The member 2 is provided with a hollowedout portion 6 that ispreferably threaded so as to be easily attached to the tube'3. Above thehollowed-out portion 6 is another hollowed-out portion 7 which isconnected to the hollowed-out portion 6 by a passageway 8 of a slightlylarger size than the wire rope or rod 9 that is adapted to be operated.T e hollowed-out portion 7 is adapted to accommodate a projection 10formed on the lower portion of the casing 1. The hollowed-out portion 7and the extension or projection 10 are beveled in opposite directionsfor forming a stuffing box, as 11, containing packing 11 for preventingoil from passing up into the casing 1.

The casing 1 is made with a hollowed-out portion 12 which is adapted toaccommodate clamping members 13 and 14. A passageway 15 is providedbetween the hollowed-out portion 12 and the end of the extension 10 foraccommodating the cable 9. The clamping members 13 and 14, as moreclearly seen in Fig. 3, are made with their periphery of such a size asto snugly fit the hollowed-out portion 12 of the casing 1. When theouter surface or periphery of the members 13 and 14 are engaging thesides of the hollowed-out portion 12, the inner surface-of the members13 and 14 register with the opening 15, but the sides 13 and 14 of themembers 13 and 14 do not meet. A tightening means, as set screw 16, ispositioned in the casing 1, and is adapted to force one of the clampingmembers as 14 over against the other member 13. When the member 14 isthus forced over against or toward the member 13 the cable 9 will befirmly grasped between the two clamping members 13 and 14 as clearlyseen in t drawings. An adjusting and guiding member 17 is. positioned inthe casing 1 and is adapted (to have its inner end fit into an elongateddepression 17 for holding member 13 in correct position in relation tomember 14. If desirable the member 17 may be forced-inward so as toforce the periphery of the member 13 out of contact with the walls ofthe hollowed-out portion 12. The member 13 may be forced out anydesirable distance, and then the set screw 16 is operated for forcingthe member 14 toward the member 13 for grasping the cable 9. In case, avery small cable is used, smaller clamping members 13 and 14 may be usedand the members 16 and 17 will easily hold the same in position forfirmly grasping the cable. A plate or covering 18 is firmly secured bysuitable means as screws 19 to the casing 1. A suitable aperture 20 isprovided in the plate 18 through which cable 9 is adapted to pass. Thecover 18 is adapted to always firmly hold the clamping members 13 and 14in position, so as to be always ready to grasp'the rope or cable thatmay be passed through the casing 1. Secured in the member 2 in anyconvenient way asby threads 21 are members 22* 22 which are adapted topass through openings in the casing 1, and cover 18, and be secured inposition by suitable means as nuts 23. The members 2222 through the nuts23 securely hold the casing 1 in contact with the member 2 andconsequently firmly hold the extension 10 in position for compressingthe packing 11 in the packing box 11. By this means the casing 1 isalways held in position by the member 2 on the tube 3, and also the oilin the well is prevented from passing up the cable 9 into the casing 1by the packing 1 1. By providing a head with gripping means that arereadily adjustable for various sized cables and for easily attaching anddetach ing as the occasion may require, a device is produced that isvery desirable for use in di ging oil wells, and especially wells thatare lowing during the digging operation. The various means for adjustingthe clamps for various cables is always of great advantage, as the samemay be readily adapted for various occasions without any changing of theparts. By thus producing an article that will readily grasp a wire ropeand the like, and one that may be readily attached and detached, adevice is presented that is believed will present a structure that isvery desirable when various stops and changes are necessary during thedigging operation.

Having thus fully described my invention,

what I claim as new and desire to secure by Letters Patent is 1.- Adevice of the character described comprising a casing formed with ahollowed out portion, clamping means conforming to the contour of thehollowed out portion of said casing positioned in said casing, and aplurality of set screws for operating said clamping means.

2. A drilling head comprising a casing, a plurality of loosely arrangedclamping mem bers formed with gripping faces positioned therein, and aplurality of set screws for adjusting and clamping said clamping means.

3. A drilling head comprising a casing, means for securing same inposition, a pair of clamping members loosely mounted in said casing,means for adjusting the position of one of said clamping members andholding the same in its adjusted position, and a thumb screw for forcingthe other of said clamping members toward the first mentioned clampingmember.

4. A drilling head comprising a casing, means for securing the same inposition, a plurality of clamping members mounted in said casing, one01. said members being provided with an elongated depression, meanspassing through said casing and engaging said depression for guiding andadjusting said member, and means for forcing the other of said clampingmembers toward said member formed with said depression.

5. A drilling head comprising a casing, a plurality of clamping membersloosely positioned in said casing, means for regulating the position ofone of said members for grasping various size cables, and a set screwfor forcing the other of said. clamping members toward the one held in aset position.

6. A drilling head. comprising a casing, loosely mounted clamping meanspositioned in said casing, means for varying the position of saidclamping means, means for tightening said clamping means, a removablecover for said casing for holding said clamping means in the casing,means removably secured to said casing for securing the covering meansin position, a packing for preventing liquid from entering said casing,and a packing box for holding in position said packing.

In testimony whereof I a'l'lix my signature in presence of twowitnesses.

CHARLES MILLIRON.

Witnesses:

JAMES ARCASEY, I. N. JOHNSTON.

